<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>display</title>
    <style>

        #d1 {
            width: 200px;
            height: 200px;
            border: 1px solid #000;
            background-color: #EDB21C;
            position: relative;
            top: 120px;
            left:120px;
            cursor:help;

        }

        #dd {
            width: 800px;
            height: 1200px;
            border: 1px solid #000;
        }
    </style>
</head>
<body>

<div id="dd">
    <div id="d1">
        这是一个div
    </div>
</div>
</body>
</html>